Abdullah ibn Mas'ud reported that the Prophet (salAllahu alayhi wasalam) said, 'Whoever recites surah al Waqiah at night would never encounter poverty'
[Ibn as-Sunni 620, Bayhaqi]

The Prophet said, 'Surah al Waqiah is the Surah of Wealth, so recite it and teach it to your children'
[Ibn Asakir]